Decay watch: 2002 April 20

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sat Apr 20 2002 - 09:37:46 EDT

  • Next message: Michael McCants: "OIG Catalog Action Report for the week ending April 20"

     From my decay watch page:
    _____________________________________________________________________
    Object: #25389 = 98- 42 A = Tubsat N
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SpaceCom   Apr 20 00:17     Apr 22 12:32 +-2d        78.5 S    30.6 W
    SatEvo     Apr 20 13:25     Apr 22 07:44 +-14h
    
    Latest elset:
    Tubsat N         0.5  0.5  0.0  9.0 d 0.27       230 x 202 km
    1 25389U 98042A   02110.20574983  .02673875 -30635-6  12135-2 0  1495
    2 25389  78.8686 114.0225 0020838 164.0389 196.1552 16.21411993209769
    
    SatEvo prediction: See Decay Watch page.
    
    Note: This small faint object is sunlit all around its orbit.
    _____________________________________________________________________
    Object: #26941 = 01- 45 F = Raduga 1-6 aux motor
    
    Final decay analyses:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SpaceCom   Apr 20 08:22     Apr 20 01:43 +-1m        46.1 N    59.5 E
    SatEvo     Apr 19 20:05     Apr 20 00:10 +-3h        44.4 N    92.5 E
    
    Final elsets:
    Raduga 1-6 aux motor                             1479 x 94 km
    1 26941U 01045F   02109.65770099  .99999999  88902-5  19993-2 0  2335
    2 26941  46.8003 190.9818 0966525  82.7728 288.3614 14.31722863  6429
    Raduga 1-6 aux motor                             1441 x 93 km
    1 26941U 01045F   02109.67945582  .99999999  89381-5  19198-2 0  2315
    2 26941  46.8334 190.8074 0943271  82.9210  40.7133 14.37470730  6425
    
    Note: SpaceCom's final analysis, with its surprising 1 minute
    uncertainty, is not supported by any later elsets than that available
    when I made my prediction yesterday. I still have this decaying over
    Mongolia following perigee on the following SatEvo-predicted orbit:
    Raduga 1-6 aux motor                             450 x 83 km
    1 26941U 01045F   02109.98925432 6.45598467  50000+2  28588-2 0 92317
    2 26941  46.7796 189.2114 0275608  84.4860 278.6510 16.02918942  6475
    _____________________________________________________________________
    
    
    Alan
    -- 
    Alan Pickup / COSPAR 2707:  55.8968N   3.1989W   +208m   (WGS84 datum)
    Edinburgh  / SatEvo & elsets:    http://www.wingar.demon.co.uk/satevo/
    Scotland  / Decay Watch: http://www.wingar.demon.co.uk/satevo/dkwatch/
              *
    
    -----------------------------------------------------------------
    Unsubscribe from SeeSat-L by sending a message with 'unsubscribe'
    in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org
    http://www.satellite.eu.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Sat Apr 20 2002 - 09:39:24 EDT